The DuraVent 12DT-24SS is a chimney pipe from the DuraTech collection, a double-wall chimney system that can be used with fireplaces, wood stoves, furnaces, water heaters, ranges, boilers and other appliances. This chimney pipe is designed to be used for appliances that are tested and listed for use with a 1700-degree Fahrenheit chimney system. Made with stainless steel construction, this measures 24 inches in length, inner diameter of 12 inches, and outer diameter of 14 inches. This is a UL-listed product and also includes DuraVents limited lifetime warranty.Search only for the best and high-quality products for your vent system. In cooperation with DuraVent, PlumbersStock.com has everything you need at affordable prices. Go find yours now here at PlumbersStock.com!